Clamp-on Circuit Breaker Lockout Device – 480/600 Volt – 3 Pack

TRADESAFE clamp-on circuit breaker lockout devices help authorized employees secure compatible 480/600V circuit breakers in the off position during maintenance, repair, inspection, and electrical servicing. This 3-pack is designed for qualifying single-pole and multi-pole breaker toggles measuring up to 1-1/2" wide by 1/2" thick, providing a practical option for facilities that maintain larger electrical breakers across multiple panels or work areas.

Each device combines an impact-resistant, non-conductive nylon body with a clamp-style design and extra-thick, serrated stainless steel teeth that bite onto compatible breaker toggles to resist slipping and shifting. A steel thumbscrew with a nylon knob tightens by hand for tool-free installation. The integrated 19/64" shackle hole accommodates a compatible lockout padlock or hasp; padlock and hasp are sold separately. Cleats are included, while safety padlocks and hasps are sold separately.

Circuit Breaker Lockout for 480/600V Breakers

This circuit breaker lockout is designed for compatible larger 480V to 600V breakers where the toggle remains within the stated dimensional limits. It can be used with qualifying single-pole breakers and multi-pole configurations, giving electrical and maintenance teams a compact lockout solution for several common high-voltage breaker applications. The included cleat supports a secure fit on wider-spaced breaker poles.

Part number: TSLBRKR. Similar industry part numbers: 65397, ‎S3822

Key specifications include:

• Quantity: 3 clamp-on breaker lockout devices
• Breaker range: 480V to 600V
• Compatible with qualifying single-pole and multi-pole breakers
• Maximum toggle width: 1-1/2"
• Maximum toggle thickness: 1/2"
• Non-conductive nylon body
• Steel thumbscrew
• Cleats included
• Shackle hole diameter: 19/64"; use a compatible padlock or hasp
• LOTO padlocks and hasps are sold separately

Breaker design and toggle dimensions should be checked before ordering because breakers with the same voltage rating can use different handle configurations. Confirming both the pole arrangement and physical toggle size helps determine whether this clamp-on model is appropriate for the intended isolation point.

Clamp On Breaker Lockout with Tool-Free Installation

This clamp-on breaker lockout uses a steel thumbscrew with a nylon knob to tighten firmly around a compatible breaker toggle by hand, without a screwdriver or separate installation tool. The flip-up cover and built-in notch hold the device open during installation, while a stainless steel pivot supports smooth cover movement through repeated use. Once the cover is closed and secured with a personal safety padlock or hasp, the security shield limits access to the clamping screw during lockout.

Construction and installation features include:

• Tool-free steel thumbscrew mechanism
• Included cleat for wider-spaced breaker poles
• Impact-resistant nylon body
• Nonconductive construction
• Clamp-style attachment
• One integrated lockout point
• 19/64" shackle hole for a compatible padlock or hasp
• Weather-resistant construction
• Chemical-resistant materials
• Tamper-resistant design

The straightforward installation process makes the devices useful for recurring electrical maintenance where lockouts may need to be applied across several compatible panels during the same shift. The 3-pack also allows facilities to keep identical devices in different electrical kits, work areas, or maintenance stations rather than moving one lockout between isolation points.

Clamp-On Circuit Breaker Lockout for Electrical Maintenance

These clamp-on circuit breaker lockout devices are suited to industrial facilities, commercial buildings, maintenance departments, and electrical service teams working with compatible 480/600V breakers. Their compact size makes them easy to store in electrical LOTO kits, lockout stations, maintenance carts, or portable safety bags while keeping several devices available for recurring isolation work.

Installation starts by confirming the breaker type, toggle dimensions, and panel layout. Position the device over the compatible handle, tighten the thumbscrew until firmly seated, and close the cover. Then insert a compatible lockout padlock or hasp through the 19/64" shackle hole to restrict breaker operation until the authorized employee completes the work and removes the lock. Using a hasp allows multiple workers to secure the same breaker with individual locks. Padlocks and hasps are sold separately.

The impact-resistant, non-conductive nylon body is built for the rough handling of daily industrial use. Its high-visibility safety-red color improves recognition of the lockout device at the isolation point. With an operating range of -49°F to 351°F (-45°C to 177°C), this large breaker lockout supports use across outdoor installations, mechanical rooms, manufacturing plants, and other environments with demanding temperature conditions.

To ensure compatibility, check out our Breaker Lock Solution Guidelines to find the right TRADESAFE Breaker Lockout Device for your specific breaker model and number of poles.

Choose the TRADESAFE 3-pack when you need clamp-on lockout devices for compatible 480/600V circuit breakers. Pair each device with the personal padlock required by your facility’s lockout procedure. Keep multiple breaker isolation points supplied with compact, reusable lockout equipment.

OSHA-Compliant Circuit Breaker Lockout Device

Compliance with the OSHA Standard for The Control of Hazardous Energy (Lockout/Tagout) (29 CFR 1910.147) is vital to the safety of every employee on site. That’s why we make sure that all of our products help workplaces remain OSHA-compliant.

TRADESAFE products are made with the requirements for lockout tagout devices in mind. These are the requirements pursuant to OSHA Standard 1910.147:

• Durable: Devices must be able to withstand exposure to the environment in which they will be used for as long as necessary.
• Standardized: Devices used in a facility must be standardized according to color, shape, or size.
• Substantial: Devices must be difficult to remove without the use of excessive force or techniques that are not typically used to remove the devices. They should also be able to prevent accidental removal.
• Identifiable: Devices must be able to identify the employee who applied them.
• Exclusive for Safety: Devices must not be used for any purpose other than controlling energy.

TRADESAFE: A Trusted USA-Based Partner in Lockout Tagout

• TRADESAFE is a USA-based company well-versed in OSHA regulations
• People-centered supplier of safety products
• High-quality products made of heavy-duty and durable materials
• Constant innovation and continuous adaptation to new standards

TRADESAFE is your partner in safety and we always keep the seriousness of that role in mind. That’s why all of our lockout tagout products are industrial-grade and meet regulatory standards. They are all ideal for use in the lockout of electrical and many other energy applications.

We don’t want to just be your supplier. We want to be your partner. For this reason, we approach things differently. Each and every day our team works to improve our products and the services we provide to the great people and businesses that put so much faith in us.

TRADESAFE is a USA-based company. This helps us stay up to date on the latest OSHA safety standards. We are inspired by the American worker and we are honored to help keep you safe from harm and hazards.